

Greg Hess
Internet Sales Director
Mark Christopher Auto Center
2131 E Convention Center Way
Ontario, CA 91764
Love to give Great Experiences and gain raving fans...
Read moreDealership Experience
15 yrs, 1 mo
Industry Experience
17 yrs, 5 mos
402 Reviews
Write a Review402 Reviews of Greg Hess
June 21, 2025
Mario really went above and beyond. I went with my wife and two kids. He was really patient and showed me all the features of my truck. Went on to assist me with OnStar and set me up wi I went with my wife and two kids. He was really patient and showed me all the features of my truck. Went on to assist me with OnStar and set me up with GM Rewards! Thank you Mario! More
Other Employees Tagged: Mario Sanchez
June 20, 2025
Customer service like the one Alazar provided is rare. He made my in-laws and mine experience one of a kind. I’ve bought plenty of cars in the past, but I’ve never wanted anyone to get the credit more tha He made my in-laws and mine experience one of a kind. I’ve bought plenty of cars in the past, but I’ve never wanted anyone to get the credit more than Alazar. Since our first initial call to when we received our keys it was a 20/10 More
Other Employees Tagged: Sam Fakhouri, Alazar Omari, Nate Heath, Sam Abdelmesseh, Lloyd Beardsley , Cesar Valenzuela
June 09, 2025
Greg , Alex and his team did an amazing job helping me with a vehicle of mine! They were honest and ethical and made sure they got me the best deal for my situation! It's nice to know that there are still with a vehicle of mine! They were honest and ethical and made sure they got me the best deal for my situation! It's nice to know that there are still good business people in today's world, especially when dealing with vehicles. Check them out if you're looking for an easy and honest car buying experience!! Thanks Car More
Other Employees Tagged: Alex Sarabia
June 06, 2025
They were all very helpful, knowledgeable and honest. I’m so happy with my New RST Suburban!! I’m so happy with my New RST Suburban!! More
Other Employees Tagged: Nate Heath, Lloyd Beardsley , Edgar was awesome to work with
June 06, 2025
One of the best auto dealership experiences I’ve ever had. Greg, Eric, and Sam were very helpful and extremely professional! had. Greg, Eric, and Sam were very helpful and extremely professional! More
Other Employees Tagged: Sam Fakhouri
May 27, 2025
JC couldn't have been more helpful and informative. The whole team at Mark Christopher will make you feel like family! Thanks again and will be back for any future purchases. The whole team at Mark Christopher will make you feel like family! Thanks again and will be back for any future purchases. More
Other Employees Tagged: Joe Gonzalez, Sam Fakhouri, Nick Polytarhos, Albert Rodriguez, Joel Rodriguez, Jerry Pena, JC Cavazos, Sam Abdelmesseh
May 25, 2025
Eric did an outstanding job making us feel very comfortable. Very professional. Very courteous. Very satisfied. comfortable. Very professional. Very courteous. Very satisfied. More
Other Employees Tagged: Cesar Luna, Eric Nosser
May 18, 2025
your customer service is poor, your people don't follow up, and you do not treat your customers with care. up, and you do not treat your customers with care. More
Other Employees Tagged: Nobu Damon
May 17, 2025
"Eric made us feel truly welcome and at home. Our experience at the dealership was one of the best we've had, thanks to the outstanding service and hospitality. We deeply appreciate the entire te Our experience at the dealership was one of the best we've had, thanks to the outstanding service and hospitality. We deeply appreciate the entire team for making us feel valued—especially Eric, whose kindness and professionalism stood out. Greg and Sam also played a significant role in the buying process, and their input was amazing. Overall, it was an awesome experience at a dealership with professional staff who understood exactly what I wanted and how to help me achieve it. Respectful, professional, and thankful—an excellent process!" More
Other Employees Tagged: Sam Fakhouri, Eric Nosser